Antarctica is a hellish wasteland even in the best conditions.
On peninsulas that stretch out into the warming southern oceans of our planet, the Antarctic summer can occasionally stretch temperatures into something resembling tolerable. But in the interior of the continent, life all but halts as the climate turns aggressively hostile to all who dare challenge it. At the South Pole itself the record high temperature is a mere 10 degrees Fahrenheit with lows frequently plunging over 100 degrees below zero.
In the winter, sunlight abandons the Antarctic for months at a time, while extreme winds and dense cloud cover make interior navigation all but impossible.